—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job

— （） my students have a try

A. Shall

B. Must

C. Will

D. May

辨认和证实“多毛细胞”的最有效手段为（）

A.细胞化学染色

B.染色体核型分析

C.骨髓象和血象综合分析

D.扫描电镜超微结构检查

E.骨髓组织病理检查